Improvement in cotton-gins



JOSEPH W. THORN,

UNITED STATES PATENfr OFFICEa IMPROVEMENT IN COTTONG\INS.`

Specicationforming part of Letters Patent No. 186,383, dated January 16, 1877; application filed August 2s, 1876.

of Mississippi, have invented a new and Improved OottonAGin, of which the following is a specification:

This invention relates to a construction of the brush-drum for simplifying the same, and

facilitating the application of the brush-Wings, so that they can be readily taken oit' and put on also, an arran gement of the ribs between the saws for facilitating the separating of the seed from the cotton without breaking and injuring the ber, all ashereinafterdescribed.

Figure 1 is a sectional elevation of my improved machine, taken on line x .r of Fig. 2; and. Fig. 2 is a plan view.

'Ihejournal-boxes A are cast with an oval or curved bottom, B, to allow them to oscillate'a little end wise above the bottom D of a support having cheeks E, between which the boxes are pivoted, so as to be self-adjustable to the line of the journals F, and to be fastened to the frame by a single bolt, G.

The brush-drum consists of two heads, H, and a middle ring, L, cast-with arms I, to be titted to' the shaft J, and` having openings t through them, to allow of sliding the brushwings K out and inendwise.

N represents the ordinary ribsbetween the saws O, to which I apply the secondary rib P, with a groove in the face, to be used in ginning sea island or other long staple, which passes over the elevations, while the seed is held and retained by the grooves, the ber being taken oft'. before it gets to the rib N. R represents the right and left spiral-bladed screw-beater, which I arrange in front ot' the saws, to keep the roll in the middle portion of the case, which prevents the breaking oi it, and also prevents the seed from gathering and clogging at the ends of' the saw-drum.

rI`he beater is geared with the saw-shaft, so as to be revolved by it by friction-wheels T.

Having thus described my invention, what I claim as new, and desire to secureV by Letters Patent, is-

1. The brushdrum Ahaving cylinder-heads with slotted openings a. and removable brush- `wings, as and for the pur-pose described.

2. The cotton-gin rib N, having strip P, with central groove onv its top or face, as and for the purpose set forth. v

3. A gin-hopper provided with a blade or shaft, twisted right and left in opposite directions from the center, for the purpose specifled.

JOSEPH W. THORN.

Witnesses:

W. H. SEAY, Z. H. WooDALL. 

